An Experimental Study on Physical Properties and Water Repellent Performance of Cement Mortar According to Mixing Method of Water Repellent

발수제 혼입 방법에 따른 시멘트 모르타르의 물리적 특성 및 발수 성능에 관한 실험적 연구

Water repellent and waterproofing agents fail to act work properly if cracks or detachment occurs outside. The method of making mortar was tested by classifying it into two methods: direct water-repellent put in concrete and water-repellent spray to sand method. It was found that the compressive strength was decreased as the amount of water repellent was increased. As a result of measuring the contact angle, all of the specimens were hydrophobic. The spray method showed greater water repellent effect than the direct mixing method.